US 10,853,644 B2 · Method and system for determining possible geographic positions of an assumed undetected target

Abstract

A sensor surveillance system (100) and a method for determining possible geographic positions of at least one assumed undetected target (1a-n) within a geographic volume of interest (200) is provided, wherein for a first point in time ti the following steps are performed: dividing the geographic volume of interest (200) into sections (10); assuming the existence of an assumed undetected target (1a-n) at a geographic position within each section (10); and initiating the creation of a pattern (2) defining at least one possible geographic position of the assumed undetected target, said pattern extends at least partially around the geographic position of the assumed undetected target (1a-n); wherein the geographic extension of said pattern is determined based on: the category of the assumed undetected target (1a-n); and the amount of time that has passed from the first point in time t1. Further, for a second point in time t2 the following steps are performed: determining geographic locations (205) within said geographic volume of interest (200) from where sensor signals show absence of targets; and removing the pattern (2) from the geographic locations (205) from where sensor signals show absence of targets.

Claims24

Dependent claims

A method for determining possible geographic positions of at least one assumed undetected target within a geographic volume of interest, the method comprising:

for a first point in time t1,
dividing, by at least one processor, the geographic volume of interest into sections;
assuming, by the at least one processor, an existence of an assumed undetected target at a geographic position within each section of the sections;
and
initiating, by the at least one processor, creation of a pattern defining at least one possible geographic position of the assumed undetected target, wherein the pattern geographically extends at least partially around the geographic position of the assumed undetected target;
wherein the geographic extension of the pattern is determined based on:
a category of the assumed undetected target;
and
an amount of time that has passed from the first point in time t1;
and
for a second point in time t2,
determining, by the at least one processor, geographic locations within the geographic volume of interest from where sensor signals show absence of targets;
and
removing, by the at least one processor, the pattern from the geographic locations from where sensor signals show absence of targets;
wherein at least one sensor of a sensor surveillance system is controlled based on the pattern.

12 more elements

A sensor surveillance system configured for determining possible geographic positions of at least one assumed undetected target within a geographic volume of interest, the system comprising:

a central control unit comprising at least one processor;
and
at least one sensor arranged to scan and detect targets in a certain geographic volume within the geographic volume of interest,
wherein the central control unit is arranged to perform:
at a first point in time t1,
dividing the geographic volume of interest into sections;
assuming an existence of an assumed undetected target at a geographic position within each section of the sections;
and
initiating a creation of a pattern defining at least one possible geographic position of the assumed undetected target, wherein the pattern geographically extends at least partially around the geographic position of the assumed undetected target;
and
wherein the geographic extension of the pattern is determined based on:
a category of the assumed undetected target;
and
an amount of time that has passed from the first point in time t1;
and
at a second point in time t2,
determining geographic locations within the geographic volume of interest (200) from where signals from the sensor show absence of targets;
and
removing the pattern from those geographic locations from where the signals from the sensor show absence of targets;
wherein the central control unit is arranged to control at least one sensor of the sensor surveillance system based on the pattern.

17 more elements

Dependencies are inferred from the claim text.

Method and system for determining possible geographic positions of an assumed undetected target

Life of this patent

Method and system for determining possible geographic positions of an assumed undetected target

Life of this patent

Abstract

Claims24